Accession Number : AD0718519

Title :   Development of Remote Methods for Obtaining Soil Information and Location of Construction Materials Using Gamma Ray Signatures for Project THEMIS.

Descriptive Note : Semi-annual rept.,

Corporate Author : RICE UNIV HOUSTON TEX DEPT OF GEOLOGY

Personal Author(s) : Adams,J. A. S. ; Clark,H. C. ; Clark,R. B. ; Cook,B. G. ; Duval,J. S.

Report Date : 15 DEC 1970

Pagination or Media Count : 275

Abstract : A major emphasis in recent years has been the development, calibration, and field testing of airborne gamma-ray spectrometer systems, particularly with the low levels and slow speeds attainable with helicopters. The research described in the following pages is directed toward three main end uses: terraine analysis, including the characterization of soils and rocks on the basis of their thorium, uranium, and potassium contents; trafficability; building materials, e.g. limestone with optimum clay content for cement; soil moisture; direct exploration for economic deposits of thorium and uranium; indirect mineral exploration for minerals associated with radioactive minerals, e.g. placer gold, or with potassium alteration, e.g. copper; rapid location and assessment of fission product contamination of the environment. (Author)

Descriptors :   (*GEOPHYSICAL PROSPECTING, GAMMA RAY SPECTROSCOPY), (*SOILS, GAMMA RAY SPECTRA), (*NUCLEAR RADIATION SPECTROMETERS, DESIGN), (*CONSTRUCTION MATERIALS, SOURCES), THORIUM COMPOUNDS, URANIUM COMPOUNDS, POTASSIUM COMPOUNDS, TERRAIN, GEOCHEMISTRY, AIRBORNE, GAMMA COUNTERS, SPECTRUM SIGNATURES, HELICOPTERS, COMPUTER PROGRAMS, ROCK, LIMESTONE, ECONOMIC GEOLOGY, PUERTO RICO, TEXAS

Subject Categories : Geology, Geochemistry and Mineralogy
      Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE